package Controler;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.ArrayList;

import javax.jms.Session;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import Information.Enterprise;
import Information.UserInfo;
import Model.EnterpriseDAO;
import Model.UserInfomrmationDAO;

public class login extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public login() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");
		HttpSession session = request.getSession();
//		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		String utype = request.getParameter("utype");
		if(username == null)
			out.print("<script>alert('please input username');window.location.href='index.jsp';</script>");
		else if(password==null)
			out.print("<script>alert('please input password');window.location.href='index.jsp';</script>");
		else
		{
			if(utype.equals("个人用户"))
			{
//				ArrayList<UserInfo> arrayList =  new ArrayList<UserInfo>();
				UserInfomrmationDAO person = new UserInfomrmationDAO();
				UserInfo userInfo = new UserInfo();
				try {
					userInfo = person.FindUser(username);
				} catch (ClassNotFoundException | SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				if(userInfo.getUUser()==null)
					out.print("<script>alert('there is no this user');window.location.href='index.jsp';</script>");
				else if(!userInfo.getUPassword().equals(password))
					out.print("<script>alert('password error!');window.location.href='index.jsp';</script>");
				else 
				{
					session.setAttribute("username",userInfo.getUUser());
					session.setAttribute("UNO",userInfo.getUNO());
					session.setAttribute("UName",userInfo.getUName());
					session.setAttribute("utype","person");
					out.print("<script>alert('login successfully!');window.location.href='index.jsp';</script>");
				}
			}
			else//enterprise 
			{
				EnterpriseDAO enterpriseDAO = new EnterpriseDAO();
				Enterprise enterprise = new Enterprise();
				try {
					enterprise = enterpriseDAO.FindEnterprise(username);
				} catch (ClassNotFoundException | SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				if(enterprise.getEUser()==null)
					out.print("<script>alert('there is no this user');window.location.href='index.jsp';</script>");
				else if(!enterprise.getEPassword().equals(password))
					out.print("<script>alert('password error!');window.location.href='index.jsp';</script>");
				else 
				{
					session.setAttribute("username",enterprise.getEUser());
					session.setAttribute("EName",enterprise.getEName());
					session.setAttribute("ENO",enterprise.getENO());
					session.setAttribute("utype","enterprise");
					out.print("<script>alert('login successfully!');window.location.href='index.jsp';</script>");
				}
			}
		}
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
